Quote:He said the timing of the failure at about 60 seconds into the flight points to severe vibration at Max Q, the point where aerodynamic stresses on rocket traveling through the atmosphere are greatest. Unlike American rockets, the North Koreans lack the ability to throttle their liquid-fueled rockets up or down to diminished the stresses at Max Q.

I don't know what kind of fuel they are using in their rockets, however if it is a solid fuel there is no throttle, just light and go, like the solid boosters for the space shuttle. I would assume they are liquid fuel, which we have been throttling since the 1960's. Just goes to show that the NK's are idiots.

Trying to do it on the cheap... The tech is not very new but to properly implement it requires key tools that are (1) not cheap and (2) not easy for an nation under an international microscope to obtain.